Video of Pennsylvania Trooper Ambush Shown Eric Frein Hearing

Eric Matthew Frein, 31, is pictured in this October 2014 handout photo obtained by Reuters October 31, 2014.Pike County Correctional Facility via Reuters

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Jan. 5, 2015 / 9:23 PM GMT / Updated Jan. 5, 2015 / 9:32 PM GMT

After seeing video of the deadly ambush, a Pennsylvania district judge on Monday ruled that there was sufficient evidence to try survivalist Eric Frein on all charges related to the fatal shooting of one state trooper and wounding of another.

Frein, 31, who is accused of killing Cpl. Bryon Dickson and wounding Trooper Alex Douglass in a Sept 12 ambush, showed up to his preliminary hearing clean-shaven — in stark contrast to how the he was found after 48 days on the run from cops while hiding in the woods.

Prosecutors on Monday showed the courtroom on a video of the two Pennsylvania State troopers being gunned down in the sudden attack at a police barracks.

The manhunt for Frein, which drew hundreds of police and reportedly cost authorities $11 million, put the residents of Pike and Monroe Counties on edge for nearly two months. Frein was eventually captured outside an abandoned airport hangar in Tannersville, about 90 miles north of Philadelphia.

John Schaaf, a deputy with the U.S. Marshals Service, described Monday the encounter he had with Frein when he and two colleagues located him. Schaaf said Frein had stashed a loaded pistol on the first floor of the hangar and two rifles upstairs, along with ammunition.

Prosecutors are seeking the death penalty.

Frein's defense attorney, Bill Ruzzo, said he doesn't expect Frein to receive any sort of a plea deal. "My pimary purpose is to save his life," he said.

Eric Matthew Frein, 31, is pictured in this October 2014 handout photo obtained by Reuters October 31, 2014.Pike County Correctional Facility via Reuters